Greisen is a 7 letter English word. It's valid Scrabble word worth 8 points. It's valid Words with friends word worth 10 points.
You can make 165 anagrams from letters in greisen (eeginrs).
Borrowed into English from German around 1875-80
greisen is closely connected with schorl rock both in its mineralogical composition and in its mode of origin.
greisen occurs typically in belts or veins intersecting granite.